GeForce GT 645M vs Radeon HD 4890

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and Radeon HD 4890. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 645M and Radeon HD 4890. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GT 645M Check Price

Radeon HD 4890 Check Price

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 645M here:

GeForce GT 645M Laptops

Main Specs

	GeForce GT 645M	Radeon HD 4890
Power consumption (TDP)	32 Watt	190 Watt
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Supplementary power connectors		2x 6-pin
Memory type	DDR3\GDDR5	GDDR5
Maximum RAM amount	2 GB	1 GB
Display Connectors	No outputs	2x DVI, 1x S-Video
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Radeon HD 4890 has 493% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon HD 4890 uses PCIe 2.0 x16 interface.
GeForce GT 645M has 1 GB more memory, than Radeon HD 4890.
GeForce GT 645M is used in Laptops, and Radeon HD 4890 - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Radeon HD 4890 - with TeraScale.
GeForce GT 645M is manufactured by 28 nm process technology, and Radeon HD 4890 - by 55 nm process technology.
Memory clock speed of Radeon HD 4890 is 2100 MHz higher, than GeForce GT 645M.

Game benchmarks


high / 1080p	1−2	7−8
ultra / 1080p	0−1	4−5
QHD / 1440p	0−1	0−1
low / 720p	12−14	16−18
medium / 1080p	2−3	8−9
The average gaming FPS of Radeon HD 4890 in Assassin's Creed Odyssey is 120% more, than GeForce GT 645M.
high / 1080p	−	12−14
ultra / 1080p	3−4	10−11
QHD / 1440p	0−1	0−1
low / 720p	12−14	24−27
medium / 1080p	4−5	12−14
The average gaming FPS of Radeon HD 4890 in Battlefield 5 is 128% more, than GeForce GT 645M.
low / 768p	50−55	45−50
high / 1080p	45−50	45−50
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than Radeon HD 4890.
low / 768p	110−120	140−150
medium / 768p	85−90	110−120
ultra / 1080p	35−40	55−60
QHD / 1440p	−	30−33
4K / 2160p	10−11	27−30
high / 768p	60−65	80−85
The average gaming FPS of Radeon HD 4890 in Counter-Strike: Global Offensive is 37% more, than GeForce GT 645M.
low / 768p	70−75	55−60
ultra / 1080p	14−16	20−22
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 7% more, than Radeon HD 4890.
low / 768p	70−75	80−85
medium / 768p	45−50	60−65
ultra / 1080p	18−20	35−40
The average gaming FPS of Radeon HD 4890 in Dota 2 is 30% more, than GeForce GT 645M.
high / 1080p	2−3	8−9
ultra / 1080p	2−3	8−9
4K / 2160p	0−1	3−4
low / 720p	10−11	18−20
medium / 1080p	3−4	9−10
The average gaming FPS of Radeon HD 4890 in Far Cry 5 is 175% more, than GeForce GT 645M.
high / 1080p	−	14−16
ultra / 1080p	5−6	10−11
QHD / 1440p	1−2	−
low / 720p	45−50	60−65
medium / 1080p	8−9	24−27
The average gaming FPS of Radeon HD 4890 in Fortnite is 60% more, than GeForce GT 645M.
high / 1080p	3−4	12−14
ultra / 1080p	−	10−12
QHD / 1440p	0−1	1−2
low / 720p	14−16	27−30
medium / 1080p	6−7	14−16
The average gaming FPS of Radeon HD 4890 in Forza Horizon 4 is 125% more, than GeForce GT 645M.
low / 768p	40−45	50−55
medium / 768p	−	45−50
high / 1080p	3−4	12−14
ultra / 1080p	2−3	6−7
QHD / 1440p	0−1	0−1
medium / 720p	35−40	−
The average gaming FPS of Radeon HD 4890 in Grand Theft Auto V is 50% more, than GeForce GT 645M.
high / 1080p	1−2	5−6
ultra / 1080p	0−1	3−4
4K / 2160p	0−1	0−1
low / 720p	3−4	12−14
medium / 1080p	2−3	6−7
The average gaming FPS of Radeon HD 4890 in Metro Exodus is 300% more, than GeForce GT 645M.
low / 768p	85−90	95−100
high / 1080p	55−60	90−95
ultra / 1080p	−	80−85
medium / 1080p	−	90−95
The average gaming FPS of Radeon HD 4890 in Minecraft is 31% more, than GeForce GT 645M.
high / 1080p	14−16	16−18
ultra / 1080p	12−14	14−16
low / 720p	24−27	30−35
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon HD 4890 in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than GeForce GT 645M.
ultra / 1080p	3−4	7−8
QHD / 1440p	0−1	0−1
low / 720p	4−5	12−14
medium / 1080p	−	10−12
The average gaming FPS of Radeon HD 4890 in Red Dead Redemption 2 is 150% more, than GeForce GT 645M.
low / 768p	8−9	24−27
medium / 768p	7−8	16−18
high / 1080p	3−4	9−10
ultra / 1080p	3−4	6−7
4K / 2160p	0−1	6−7
The average gaming FPS of Radeon HD 4890 in The Witcher 3: Wild Hunt is 180% more, than GeForce GT 645M.
low / 768p	70−75	85−90
medium / 768p	35−40	45−50
ultra / 1080p	12−14	20−22
high / 768p	30−33	35−40
The average gaming FPS of Radeon HD 4890 in World of Tanks is 26% more, than GeForce GT 645M.

Full Specs

	GeForce GT 645M	Radeon HD 4890
Architecture	Kepler	TeraScale
Code name	N13P-GS	RV790
Type	Laptop	Desktop
Release date	22 March 2012	2 April 2009
Pipelines	384	800
Core clock speed		850 MHz
Transistor count	1,270 million	959 million
Manufacturing process technology	28 nm	55 nm
Texture fill rate	22.7 billion/sec	34.00
Floating-point performance	544.5 gflops	1,360.0 gflops
Length		241 mm
Memory bus width	128bit	256 Bit
Memory clock speed	1800 MHz	3900 MHz
Memory bandwidth		124.8 GB/s
Shared memory	-
DirectX	12 API	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.5	3.3
OpenCL	1.1	1.1
Vulkan	1.1.126	N/A
CUDA	+
CUDA cores	384
Bus support	PCI Express 2.0, PCI Express 3.0
HDMI	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
3D Blu-Ray	+
Bitcoin / BTC (SHA256)	19 Mh/s
Laptop size	medium sized
Optimus	+
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GeForce GT 645M vs Radeon HD 4890

GeForce GT 645M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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